アメリカ自然史博物館のインスタグラム(amnh) - 11月27日 14時05分

Did you know the American black bear (Ursus americanus) is the smallest bear in North America? The average adult male still weighs in at a hefty 385 pounds, and in extreme cases can reach up to 600 pounds! If you watched a black bear lumbering through the forest, you might not notice anything unusual about how it moves. This omnivorous bear carries its massive weight with a slow, steady stride on all four paws. Walking on four feet isn't unusual for a mammal, but most living mammal species walk on their toes. Bears, like humans, walk on flat feet!
Photo: Max Pixel

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